Mixture for non-aqueous electrolyte secondary battery, electrode for same, and non-aqueous electrolyte secondary battery

A non-aqueous electrolyte, secondary battery technology, applied in non-aqueous electrolyte battery electrodes, battery electrodes, circuits, etc., can solve the problem of insufficient electrode peel strength, and achieve excellent peel strength, good productivity, and suppression of uneven existence. Effect
CN102725889AInactive Publication Date: 2012-10-10KUREHA KAGAKU KOGYO KK
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
KUREHA KAGAKU KOGYO KK
Publication Date
2012-10-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

An object of the present invention is to provide a mixture layer and mixture for a non-aqueous electrolyte secondary battery with excellent peeling strength from a power collector, that is highly productive in manufacturing a non-aqueous secondary battery electrode and a non-aqueous secondary battery, and suppresses mal-distribution of a binding agent in the mixture layer when manufacturing the electrode. The non-aqueous secondary battery mixture contains at least one type of unsaturated carboxylic acid polymer (A) selected from a polyacrylic acid and polymethacrylic acid, vinylidene fluoride polymer containing carboxyl (B), an electrode active material, and a weight-average molecular weight of 1,000 - 150,000 of polyethylene oxide conversion measured by GPC of the unsaturated carboxylic acid polymer (A).
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Description

technical field

[0001] The present invention relates to a mixture for a nonaqueous electrolyte secondary battery, an electrode for a nonaqueous electrolyte secondary battery, and a nonaqueous electrolyte secondary battery. Background technique

[0002] In recent years, the development of electronic technology has been remarkable, and various machines have gradually become smaller and lighter. In line with the miniaturization and weight reduction of the above-mentioned electric appliances, the size and weight reduction of batteries serving as their power sources are required. As a battery that can obtain a large amount of energy with a small volume and weight, non-aqueous electrolyte secondary batteries using lithium are mainly used as power sources for small electrical appliances used in households such as mobile phones, personal notebook computers, and video cameras.

[0003] In electrodes of nonaqueous electrolyte secondary batteries, polyvinylidene fluoride (PVDF) is mai...

Claims

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